//
//  CZVisitorView.swift
//  05.08--weibo
//
//  Created by fennyYang on 16/5/12.
//  Copyright © 2016年 a. All rights reserved.
//

import UIKit

// 1.定义协议 <NSObject>
@objc protocol CZVisitorViewDelegate: NSObjectProtocol
{
    // 2.定义协议方法， 注册按钮被点击后的代理方法
    optional func visitorViewDidClickRegister()

    // 登录按钮被点击后的代理方法
    func visitorViewDidClickLogin()

}


// 自定义的访客视图
class CZVisitorView: UIView
{
    var name: String

    // 3.定义代理属性
    weak var delegate: CZVisitorViewDelegate?

    // MARK:- 公开的方法
    // 设置访客视图内容
    func setupVisitorInfo(imageName: String, message: String)
    {
        // 将转轮图片替换
        iconView.image = UIImage(named: imageName)

        // 设置messageLabel
        messageLable.text = message

        // 隐藏小房子
        homeView.hidden = true

        //隐藏遮盖
        coverView.hidden = true

    }

    // 转轮旋转动画
    func startRotationAnimation()
    {
        //创建核心动画
        let anim = CABasicAnimation(keyPath: "transform.rotation")
        anim.toValue = M_PI * 2
        anim.duration = 20
        anim.repeatCount = MAXFLOAT

        // 核心动画完成的时候不要移除
        anim.removedOnCompletion = false

        // 将核心动画添加到图层上面
        iconView.layer.addAnimation(anim, forKey: nil)
    }

    // 这个构造函数通过xib/sb里面创建才会走这个方法
    // UIKit 的里面的view即可以通过代码来创建，也可以通过xib/sb来创建
    // requird 表示必须实现的构造函数有required不需要加override
    required init?(coder aDecoder: NSCoder)
    {
        fatalError("init(coder:) has not been implemented")
    }

    // override：构造函数，看父类有没有和这个一样的构造函数
    override init(frame: CGRect)
    {
        // 在super.init之前给属性赋值
        // 调用对象方法不能放到super.init之前，在super.init之前，这个对象还没初始化好（创建），对象没创建好是不能调用对象的方法的
        self.name = ""
        super.init(frame: frame)

        prepareUI()
    }

    // 设置UI
    private func prepareUI()
    {
        //设置背景颜色
        self.backgroundColor = UIColor(white: 237 / 255.0, alpha: 1)

        // 将子控件添加进来
        self.addSubview(iconView)
        self.addSubview(coverView)
        self.addSubview(homeView)
        self.addSubview(messageLable)
        self.addSubview(registerButton)
        self.addSubview(loginButton)

        iconView.translatesAutoresizingMaskIntoConstraints = false
        coverView.translatesAutoresizingMaskIntoConstraints = false
        homeView.translatesAutoresizingMaskIntoConstraints = false
        messageLable.translatesAutoresizingMaskIntoConstraints = false
        registerButton.translatesAutoresizingMaskIntoConstraints = false
        loginButton.translatesAutoresizingMaskIntoConstraints =  false

        // 添加约束（最好只添加一次）
        // 创建的约束都往要约束的view的父控件上面添加

        // 转轮
        // CenterX和父控件的CenterX重合
        // item: 要添加约束的view
        // attribute: 要添加的View的属性
        // toItem: 要参照的view
        // attribute: 要参照View的属性
        // 将约束添加到view上面去
        self.addConstraint(NSLayoutConstraint(item: iconView, attribute: NSLayoutAttribute.CenterX, relatedBy: NSLayoutRelation.Equal, toItem: self, attribute: NSLayoutAttribute.CenterX, multiplier: 1, constant: 0))

        // CenterY和父控件的CenterY重合
        self.addConstraint(NSLayoutConstraint(item: iconView, attribute: NSLayoutAttribute.CenterY, relatedBy: NSLayoutRelation.Equal, toItem: self, attribute: NSLayoutAttribute.CenterY, multiplier: 1, constant: 0))

        // 遮盖
        self.addConstraint(NSLayoutConstraint(item: coverView, attribute: NSLayoutAttribute.Leading, relatedBy: NSLayoutRelation.Equal, toItem: self, attribute: NSLayoutAttribute.Leading, multiplier: 1, constant: 0))

        self.addConstraint(NSLayoutConstraint(item: coverView, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: self, attribute: NSLayoutAttribute.Top, multiplier: 1, constant: 0))

        self.addConstraint(NSLayoutConstraint(item: coverView, attribute: NSLayoutAttribute.Trailing, relatedBy: NSLayoutRelation.Equal, toItem: self, attribute: NSLayoutAttribute.Trailing, multiplier: 1, constant: 0))

        self.addConstraint(NSLayoutConstraint(item: coverView, attribute: NSLayoutAttribute.Bottom, relatedBy: NSLayoutRelation.Equal, toItem: registerButton, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 0))


        //小房子
        //CenterX 转轮CenterX
        self.addConstraint(NSLayoutConstraint(item: homeView, attribute: NSLayoutAttribute.CenterX, relatedBy: NSLayoutRelation.Equal, toItem: iconView, attribute: NSLayoutAttribute.CenterX, multiplier: 1, constant: 0))

        //CenterY转轮CenterY
        self.addConstraint(NSLayoutConstraint(item: homeView, attribute: NSLayoutAttribute.CenterY, relatedBy: NSLayoutRelation.Equal, toItem: iconView, attribute: NSLayoutAttribute.CenterY, multiplier: 1, constant: 0))

        //消息label , 宽度，当参照的view为nil时，属性为NSLayoutAttribute.NotAnAttribute
        self.addConstraint(NSLayoutConstraint(item: messageLable, attribute: NSLayoutAttribute.Width, relatedBy: NSLayoutRelation.Equal, toItem: nil, attribute: NSLayoutAttribute.NotAnAttribute, multiplier: 1, constant: 240))

        //CenterX 和父控件CenterX
        self.addConstraint(NSLayoutConstraint(item: messageLable, attribute: NSLayoutAttribute.CenterX, relatedBy: NSLayoutRelation.Equal, toItem: self, attribute: NSLayoutAttribute.CenterX, multiplier: 1, constant: 0))

        //Top 和转轮底部
        self.addConstraint(NSLayoutConstraint(item: messageLable, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: iconView, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 16))

        // 注册按钮 ， 顶部和label底部
        self.addConstraint(NSLayoutConstraint(item: registerButton, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: messageLable, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 16))

        //左边和labelduiqi
        self.addConstraint(NSLayoutConstraint(item: registerButton, attribute: NSLayoutAttribute.Leading, relatedBy: NSLayoutRelation.Equal, toItem: messageLable, attribute: NSLayoutAttribute.Leading, multiplier: 1, constant: 0))

        // 宽度
        self.addConstraint(NSLayoutConstraint(item: registerButton, attribute: NSLayoutAttribute.Width, relatedBy: NSLayoutRelation.Equal, toItem: nil, attribute: NSLayoutAttribute.NotAnAttribute, multiplier: 1, constant: 100))

        // 高度
        self.addConstraint(NSLayoutConstraint(item: registerButton, attribute: NSLayoutAttribute.Height, relatedBy: NSLayoutRelation.Equal, toItem: nil, attribute: NSLayoutAttribute.NotAnAttribute, multiplier: 1, constant: 35))

        //登录按钮，顶部和label底部
        self.addConstraint(NSLayoutConstraint(item: loginButton, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: messageLable, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 16))

        // 右边和label对齐
        self.addConstraint(NSLayoutConstraint(item: loginButton, attribute: NSLayoutAttribute.Trailing, relatedBy: NSLayoutRelation.Equal, toItem: messageLable, attribute: NSLayoutAttribute.Trailing, multiplier: 1, constant: 0))

        //宽度
        self.addConstraint(NSLayoutConstraint(item: loginButton, attribute: NSLayoutAttribute.Width, relatedBy: NSLayoutRelation.Equal, toItem: nil, attribute: NSLayoutAttribute.NotAnAttribute, multiplier: 1, constant: 100))

        //高度
        self.addConstraint(NSLayoutConstraint(item: loginButton, attribute: NSLayoutAttribute.Height, relatedBy: NSLayoutRelation.Equal, toItem: nil, attribute: NSLayoutAttribute.NotAnAttribute, multiplier: 1, constant: 35))
    }


    //MARK: - 按钮点击事件
    // 按钮点击事件方法是系统来调用，当把按钮点击事件private后系统就找不到这个方法了
    // @objc:让系统可以找到我们的方法
    @objc private func didClickRegister()
    {
        //4.调用代理的方法
        delegate?.visitorViewDidClickRegister?()
    }

    @objc private func didClickLogin()
    {
        // 调用代理方法
        delegate?.visitorViewDidClickLogin()
    }

    // MARK: - 懒加载
    // 所有的控件，转轮
    private lazy var iconView: UIImageView = UIImageView(image: UIImage(named: "visitordiscover_feed_image_smallicon"))

    //遮盖视图
    private lazy var coverView: UIImageView = UIImageView(image: UIImage(named: "visitordiscover_feed_mask_smallicon"))

    //小房子
    private lazy var homeView: UIImageView = UIImageView(image: UIImage(named: "visitordiscover_feed_image_house"))

    //消息文字
    private lazy var messageLable: UILabel =
    {
        let label = UILabel()

        //设置label
        label.text = "关注一些人，看看有什么惊喜!"
        label.textColor = UIColor.blackColor()
        label.font = UIFont.systemFontOfSize(16)
        label.textAlignment = NSTextAlignment.Center
        label.numberOfLines = 0
        label.sizeToFit()

        return label

    }()

    //注册按钮
    private lazy var registerButton: UIButton =
    {
        let button = UIButton()

        //设置
        button.setBackgroundImage(UIImage(named: "common_button_white_disable"), forState: UIControlState.Normal)

        button.setTitleColor(UIColor.orangeColor(), forState: UIControlState.Normal)

        button.setTitle("注册", forState: UIControlState.Normal)

        //添加注册点击事件
        button.addTarget(self, action: "didClickRegister", forControlEvents: UIControlEvents.TouchUpInside)


        return button

    }()

    //登录按钮
    private lazy var loginButton: UIButton =
    {
        let button = UIButton()

        //设置
        button.setBackgroundImage(UIImage(named: "common_button_white_disable"), forState: UIControlState.Normal)

        button.setTitleColor(UIColor.orangeColor(), forState: UIControlState.Normal)

        button.setTitle("登录", forState: UIControlState.Normal)

        //添加登录点击事件
         button.addTarget(self, action: "didClickLogin", forControlEvents: UIControlEvents.TouchUpInside)


        return button
    }()



}


















































